William r



(No'Moel.)

W. R. FOWLER.

FLY PAN. No. 491,476. Patented'Feb. 7,1893.

Unirse Sterns VILLIAM R. FOWLER, OF BALTIMORE, MARYLAND, ASSIGNOR TO MATTHAI NGRAM tir CO., OF SAME PLACE.

FLY-FAN.

SPECIFICATION forming part of Letters Patent No. 491,476, dated February 7, 1893.

Application filed September 23, 1892. Serial No. 446,683. (No model.)

To all whom it may concern,.- shaft, F. It will now be seen that the helical Be it known that I, WILLIAM R. FowLnR, spring, B, will rotate the support, C, on the a citizen of the United States, residing at Balvertical pivot-shaft, c, and thereby cause the timore city, in the State of Maryland, have inpinion, g, to travel over the circular rack, a,

5 vented certain new and useful Improvements and impart motion to the disk, E, which, act 5 5 in Fly-Fans, of which the following is a specitiing on the pinion, fi, revolves the fan-shaft, F. cation. The fan-shaft, F, maybe lifted out and en- This invention relates to an improvement tirely removed from the support and it may in fly-fans and has for its object to provide a be raised out of the lower guide h2, when it 1o fly-fan of simple, compactand cheap construcis desired to stop its revolution, and for this 6o tion. purpose astop-device is arranged to prevent The invention is illustrated in the accomthe helical spring unwinding when the shaft panying drawings, in which,- is thus raised.

Figure l shows a sideelevation of the com The disk, E, has a number of studs, j, on

I5 plete device; Fig. 2, a sectional view of the the inner side, and a vertically sliding pinJa, 65 base; Fig. 3, a top-view of the base and rotary in bearings, Z, on the support, C, carries a head, support; Fig. 4, a view of the outer side of a m, fitting at one side against a fiat surface, n, toothed disk which is shown broken away to 0f the support to prevent it and the pin from disclose a stop-device behind it, Fig. 5, a deturning, and said head is provided on the opzo tail section and end-view of the lower part of posite side with a stop-block, o, beveled as at, 7o the fan-shaft; Fig. (3, a top-view of the stopo', on the upper side, and normally standing device with a portion of the support in secin the path of the studs, j, on the disk, E,- tion. y being held in such normal position by a spiral The letter, A, designates a base in the shape spring, p, fitting around the pin, k, and bear- 25 ofabOWl and havingacircular rack or toothed ing against the underside of the head, m. 75 track, a, which in the present instance is on The slide-pin, 7c, has a reduced upper end, 7o', its upper edge, and a boss, Z2, standing in the and the end of the fan-shaft has a socket, k2, center. A pivot-shaft, o, rises from said boss, to receive the saine, while said shaft rests and and a support, C, is mounted to rotate on said turns upon it; thus the pin is a bearing or seat 3o shaft and extends across the base; it is pro for the shaft, F. 8o vided with a spur, d, at each end extending When the fan-shaft is turning its weight downward into the base. A helical spring, together with that of the fan is sufficient to B, is contained within said base and is tasdepress the said pin and block against the a-ctened at itsinner end to the boss, b, and at the tion of the spring, p, and thereby the stop- 35 Outer part to one of the downward-projecting block, 0,is lowered out of the path of the studs, 85 spurs, d, on the support, c, while the other j, on the disk. The said disk is then free to one of said spurs engages the opposite side revolve by the action of the helical spring, B, of the spring to confine it and prevent fricand thereby the shaft and fans are turned. tion between it and the walls of the base. A When the fan-shaft is removed the pin, 7a,

4c circular concave-Couvenv disk, E, hasatoothed and stop-block are raised again to their nor- 9o ange, e, and journals, c', which are mounted mal positions bythe spring, and a stud on the in bearings, f, on the support, C, and a pindisk, E, stops against the block, o, and the ion, g, is fast with said disk, and meshes with disk is prevented from turning. Then the the circular rack, d. A vertical fan-shaft, F, stop-block, o, is raised the friction, caused by 45 tits through abearing, h, and also through an a stud, j, pressing against the stop-block, will 95 upper and a lower guide, h', h2, on the supassist the spring to sustain said block and port, O, and has a pinion, t', formed on its pin and support the weight of the shaft, F, lower end to mesh with the toothed flange, e, and the fans, and thereby keep them at rest of the disk. Two fans, G, are carried in the and prevent them from revolving.

5o usual manner at the upper part of the said To start the fans in motion it is only necroo f essary to depress the shaft, F, so as to release the stop-block, 0, from the stud that is pressing against it.

In Winding up the spring, B, it is better to first remove the shaft, F, and then the support, C, is taken in one hand and the base, A, in the other, and the latter is turned,-it is provided exteriorly with the ribs, o", to afford a means ot' readilyobtaining a hand-hold on it. In the Winding operation the disk of course turns the reverse Way, and the projecting studs on the said disk ride over the beveled surface, o', of the stop-block, o, and depress the latter, which thus presents no obstruction to Winding.

A plate, H, covers the main-spring and moves with the support, C, the upper end of the boss, b, fitting a hole in said plate andthe spurs, di, on the said support, extending down through the same.

It will beseen that the device is simple in construction and hence not likely to get out of order; it occupies little space, and is not expensive.

I am not confined to the special arrangement of gearing herein described, for it is evident that frictional or other style gearing might be substituted, and the arrangement of parts varied.

Having thus described my invention :what I claim as new and desire to secure by Let-` ters-Patent isz- 1. In a iy-tan, the combination of a stationary base having a circular track; a rotary support having its axis at the center of said circular track and carrying a pinion which meshes with the latter and a toothed disk fast With said pinion; a motor to rotate the said support; and a fan-shaft having a pinion which meshes with the said toothed disk.

2. In a iiy-fan, the combination of a station-ary base having a circular track; a rotary support having its axis at the center of said circular track and carrying a Wheel arranged to travel over the same and receive motion therefrom; a motor for rotating the support; a stop-device to prevent rotation of said wheel; and a detachable fan-shaft driven through connections with the wheel and holding the said stop out of a position where it obstructs the Wheel.

3. In a fly-fan, the combination ot' a stationary base having a circular track; a rotary support having its axis at the center of said circular track and carrying a pinion which meshes with the latter and a toothed disk fast With said pinion, and having a projection; a motor to rotate the said support; a sliding spring-actuated stop-piece arranged to take position in the path of the projection on the toothed'disk; and a detachable fanshaft arranged to gear with said disk and also engage the sliding stop-piece and hold it out of the path of the disk-projection.

4. In a tly-t`an, the combination of a stationary base having a circular track; a rotary support having its axis at the center ot' said circular track and carrying a pinion which meshes With the latter and a toothed disk fast with said pinion, and having a projection; a motor to rotate the said support; a sliding spring-actuated pin having a head With a beveled stop-block on one side to stand in the path of the projection on the toothed disk; and a detachable fan-'shaft fitting at one end over the said slide-pin and holding it down where the stop-block on its head Will be out of the path of the projection on the disk,said fan-shaft arranged to gear with the toothed disk.

In a tlyfan,the combination of a hollow base having a circular track; a rotary support extending across said track and having its axis at the center thereof, and spurs at the ends projecting into the base; a helical spring in the base, for driving said rotary support and conned between the spurs thereon; a cover-plate over the base and arranged to rotate with the support; awheel carried by said support and arranged to travel over the circular track cn the base, Wherefrom it receives motion; and a fan-shaft driven through connections With said wheel.

In testimony whereof I afx my signature in the presence of two witnesses.

WILLIAM R. FOWLER.

Witnesses:

CHAs. B. MANN, JNO. T. MADDOX. 

